. >>> the disappearance of malaysia airlines flight 370 is putting the focus again on cockpit security. the window of a pilot of the 9/11 airplanes was on capitol hill today and she understands the dangers of breaches. >> i cannot look another family member in the eye and say i knew there was a risk and i did nothing. >> she went to the office of house transportation chair. they wantitute know why a bill that would -- want to know why a bill that would require a second cabin door is stuck in his committee. a secondary door could save lives. >> it is easy to push a person aside and run in, where as the secondary barrier is metal and cables and slows them down. >> reinforced doors have been installed on jet liners around the world since september 11. however airlines are against the legislation to add secondary barriers. they say the decision oo stall the barriers should be the decision of individual carriers. . >>> microsoft released the updates to internet explorer this morning and it fix as security breach. the company says users with automatic updates don't need to do anything. >>> m